No. 23: Adriana. Perhaps the most obscure of all the cruise ships on this list, the 4,490-gt, 350-guest Adriana was built for now-defunct Hellenic Mediterranean Lines as the Aquarius, way back in 1972. It is now owned by St. Kitts and Nevis-registered Adriana Cruises, offering year-round sailings from Port of Spain, Trinidad, to the Grenadines.
Peter Knego Collection
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